128820780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7229}}^1$

素因数の和:7261

約数の個数: 120

約数和(自身を含む): 440914320

約数和(自身を除く): 312093540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 270, 297, 324, 330, 396, 405, 495, 540, 594, 660, 810, 891, 990, 1188, 1485, 1620, 1782, 1980, 2970, 3564, 4455, 5940, 7229, 8910, 14458, 17820, 21687, 28916, 36145, 43374, 65061, 72290, 79519, 86748, 108435, 130122, 144580, 159038, 195183, 216870, 238557, 260244, 318076, 325305, 390366, 397595, 433740, 477114, 585549, 650610, 715671, 780732, 795190, 954228, 975915, 1171098, 1192785, 1301220, 1431342, 1590380, 1951830, 2147013, 2342196, 2385570, 2862684, 2927745, 3578355, 3903660, 4294026, 4771140, 5855490, 6441039, 7156710, 8588052, 10735065, 11710980, 12882078, 14313420, 21470130, 25764156, 32205195, 42940260, 64410390, 128820780]

約数ペア:

[(1, 128820780), (2, 64410390), (3, 42940260), (4, 32205195), (5, 25764156), (6, 21470130), (9, 14313420), (10, 12882078), (11, 11710980), (12, 10735065), (15, 8588052), (18, 7156710), (20, 6441039), (22, 5855490), (27, 4771140), (30, 4294026), (33, 3903660), (36, 3578355), (44, 2927745), (45, 2862684), (54, 2385570), (55, 2342196), (60, 2147013), (66, 1951830), (81, 1590380), (90, 1431342), (99, 1301220), (108, 1192785), (110, 1171098), (132, 975915), (135, 954228), (162, 795190), (165, 780732), (180, 715671), (198, 650610), (220, 585549), (270, 477114), (297, 433740), (324, 397595), (330, 390366), (396, 325305), (405, 318076), (495, 260244), (540, 238557), (594, 216870), (660, 195183), (810, 159038), (891, 144580), (990, 130122), (1188, 108435), (1485, 86748), (1620, 79519), (1782, 72290), (1980, 65061), (2970, 43374), (3564, 36145), (4455, 28916), (5940, 21687), (7229, 17820), (8910, 14458)]